Energy-saving doorbell based on piezoelectric principle

Abstract

The invention discloses an energy-saving doorbell based on the piezoelectric principle, and the doorbell comprises a button device and a loudspeaker device of the doorbell. The button device consists of two piezoelectric pieces with the consistent polarization direction, and a flexible insulating material layer which is used for separating the two piezoelectric pieces. The two surfaces, backing on to each other, of the two piezoelectric pieces are connected through a first wire, and the opposite surfaces of the two piezoelectric pieces are connected through a second wire. The first and second wires are respectively connected with a current limiting resistor, an inductor and a loudspeaker device. The doorbell employs the piezoelectric effect of a piezoelectric material, does not need a power supply, and saves the energy. Moreover, the piezoelectric material is stable in performance, and is long in service life, is low in cost, and can be widely used in life.

Description

Technical field [0001] The invention relates to an energy-saving doorbell, in particular to an energy-saving doorbell using the piezoelectric effect of piezoelectric materials. Background technique [0002] The current anti-theft doorbells are mostly electronic doorbells that use batteries or directly use electricity. Because the terminal voltage of the dry battery gradually decreases with the use of time, it affects the normal operation of the doorbell and also pollutes the environment. It is estimated that the current battery consumption of doorbells is about 789.6 million. According to the analysis, it can be clearly found that the battery consumption of the doorbell is a big expense, and it is also harmful to the environment. Moreover, electronic doorbells have the problems of energy consumption and frequent battery replacement. With the development of social economy, various pollution and energy consumption are extremely serious, and energy saving and emission reduction hav...

AI Technical Summary

Problems solved by technology

According to the analysis, it can be clearly found that the battery consumption of the doorbell is a large expenditure, and it is also harmful to the environment.

Moreover, electronic doorbells have the problems of energy consumption and frequent battery replacement. With the development of society and economy, various pollution and energy consumption are extremely serious, and energy saving and emission reduction have become the mainstream of the world today.